Manufacturers at this year’s PMA show in Las Vegas have announced new additions to their lens ranges. These include Canon, Nikon, Samsung and Pentax, as well as new lenses from third-party manufacturer Tamron.

Canon has announced two telephoto lenses in its L series. The 200mm f/2 L IS USM and 800mm f/5.6 L IS USM both boast Image Stabilisation and L series construction, with the latter lens replacing the EF 600mm f/4 L IS USM as the longest lens in Canon?s EF range.

Nikon has furnished its AF-S range of lenses, with the AF-S DX Nikkor 16-85mm f/3.5-5.6G ED VR and the AF-S Micro Nikkor 60mm f/2.8G ED. The company has also announced a new Perspective Control lens, the PC-E Nikkor 24mm f/3.5D ED, as well as confirming the development of two further PC-E lenses, the PC-E Nikkor 45mm f/2.8D ED and PC-E Micro Nikkor 85mm f/2.8D ED.

Pentax?s DA lens range sees the introduction of five new models. The DA* 200mm f/2.8 ED [IF] SDM and DA* 300mm f/4.0 ED [IF] SDM add to the company?s telephoto range, with both incorporating aspherical and Extra Low Dispersion elements, as well as a ?Quick Shift Focus System?. Two further zooms have also been announced ? the DA 18-55mm F3.5-5.6 AL II and the DA 55-300mm F4-5.8 ED ? while the DA 35mm F2.8 Macro Limited optic completes the new release and joins Pentax?s macro lens range.

Samsung had earlier announced two new lenses alongside the launch of its GX-20 DSLR. The D-XENON 18-250mm f/3.5-F6.3 and 18-55mm II F3.5-F5.6 will be available in March, with the 18-55mm lens included in the GX-20 kit option.

Tamron has also unveiled three new lenses. The 17-50mm f/2.8 is now to be made available in a Pentax mount, while the 10-24mm f/3.5-4.5 has been designed with both full-frame and APS-C users in mind. A third optic ? the SP AF70-200MM F/2.8 Di LD (IF) Macro ? has been developed for full-frame sensors and features a wide, constant aperture of f/2.8, an internal focusing mechanism and a magnification ratio of 1:3.1. The lens sits in Tamron?s ?Super Performance? range and will be available first in a Canon mount, before Nikon, Pentax and Sony become available.

The company has also announced the development of three further lenses with built-in motors in the Nikon mount. These are the AF18-200mm F/3.5-6.3 XR Di II and SP AF17-50mm F/2.8 XR Di II, as well as the full-frame 70-300mm F/4-5.6 Di. Details of pricing and availability are yet to be announced.